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Finding the Fourth Proportional to 3,578.76, 5,368.14 and 1,847.52

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Solution

The fourth proportional to 3,578.76, 5,368.14 and 1,847.52 is: 2,771.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,578.76 : 5,368.14 = 1,847.52 : x
  2. Step 2: Convert to fraction form
    3,578.76/5,368.14 = 1,847.52/x
  3. Step 3: Cross multiply
    3,578.76x = 5,368.14 × 1,847.52
  4. Step 4: Simplify right side
    3,578.76x = 9,917,746.01
  5. Step 5: Solve for x
    x = 9,917,746.01/3,578.76
  6. Step 6: Final answer
    x = 2,771.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.